Thomas,
best I can think of is very rich mixture. At full power you are getting too-little air, or too much unburned fuel?  Maybe your turbo does not keep up with the engine at high rpm?
Buly

On Jan 1, 2007, at 9:35 PM, Thomas y Reina Jakits wrote:

Buly,

I tought so too. (Was a Engine-man on Merchant Ships in a different live :))
However it only does it at WOT (or the diesel equivalent...), not ANY indication of smoke anywhere else.
There is lots of Toyota Diesels running around here and a lot DO smoke all the time - I assume negligence with maintenance...).
If you are familiar with the claims of Acetone in fuel (should  clean the fuel system just fine....), it should help a lot with  keeping the injectors clean.
110K km is normaly nothing for a Toyota Diesel....

Probably I am just fishing for a different explanation - no shops  to do such a job (Injector adjustments/overhaul) around here.
Any tests I can do to rule out other causes?

TJ



----- Original Message ----- From: "Bulent Aliev" <atlasyts@bellsouth.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Monday, January 01, 2007 9:06 PM
Subject: [FlyRotary] Re: OFF-TOPIC

Thomas, the black smoke usually comes from injectors that do not pulverize the fuel, but dribble instead. I see it on boats all  the time. Overhauling the injectors fixes that.
buly
On Jan 1, 2007, at 8:30 PM, Thomas y Reina Jakits wrote:

Buly,

water IN the injectors is pretty unlikely - I use and actually change a fuel filter regularly - The Toyota filter is made to seperate water, never any problem.
However if you imply water drops hitting the injectors....
Anyone else?

Thanx Buly,

TJ
----- Original Message ----- From: "Bulent Aliev" <atlasyts@bellsouth.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Monday, January 01, 2007 8:01 PM
Subject: [FlyRotary] Re: OFF-TOPIC

Thomas, my bet is on dirty injectors. I would suggest servicing them. Any water in the injectors most likely will blow the tips off I was told.
Buly
On Jan 1, 2007, at 7:44 PM, Thomas y Reina Jakits wrote:

Hi all,

First HAPY NEW YEAR!! to all of you! :))

Question:

A couple of weeks ago, someone (I think it was Lynn....) mentioned feeding waterspray into the throttlebody/carburator  at around 2000 rpm (piston engine) to clean any deposits from  the cylinder/piston/ turbo/etc.
The discussion was about cleaning lead deposits from  sparkplugs in the Rotary, me thinks....
I wonder if anyone of you is also a Dieselhead (besides the Rotary:)):
Would this procedure help with a small Turbo-Diesel? (Toyota  3L Turbo Diesel).
It runs great, but starts to puff small black clouds if I  really rev it (Redline 4400 rpm). Smoke puffs start at around  3300 with pedal on the floor - under full load.
I wonder if this is only some carbon deposits in the exhaust or a dripping injector or ???
I am running Acetone in the fuel (so far good results....).
The engine has close to 110K km on it.
I don't mind testing something, but if it is a definite no-no,  I would like to know up front - it IS my daily driver.
The engine is runnnig on Mobil Delvac 1 (The Mobil synthetic  for Diesels)

If it makes any sense to clean the engine with water spray no and then, please advice!!

Thanx,

Thomas Jakits
TJ

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